Home / 218,985.66-302,148.45-132,942.42

Finding the Fourth Proportional to 218,985.66, 302,148.45 and 132,942.42

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Solution

The fourth proportional to 218,985.66, 302,148.45 and 132,942.42 is: 183,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,985.66 : 302,148.45 = 132,942.42 : x
  2. Step 2: Convert to fraction form
    218,985.66/302,148.45 = 132,942.42/x
  3. Step 3: Cross multiply
    218,985.66x = 302,148.45 × 132,942.42
  4. Step 4: Simplify right side
    218,985.66x = 40,168,346,142.25
  5. Step 5: Solve for x
    x = 40,168,346,142.25/218,985.66
  6. Step 6: Final answer
    x = 183,429.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.